Holding device fob



t. L. PAGE.

MOLDING DEVICE FOR fORMING BEARINGS, c. APPLICATION msu Mvzqlglsls.

l,321,'1 22. Panted Nov. u, 1919.

UNITED STATES PATENT -oEEIoE mETT L. -P AGE, 0F PONTIAC, MICHIGAN.

HOLDING DEVICE FOR FORMING- BE,BI1\'GS,` ko.

Specification of Letters Yetent.

Patienten Nov.- 11 ,1919.

Application led Hay 20, 19-19. Berlalll'o. 298,520.

a molding devil-e designed to form the comparatively soft hearing metal liningx,l or wearing surfaces wltl'nn the hearing boxes t -or seat of n connecting rod or other machine element at which Relativi-rotary motlou be" i tween two ports of a devlee is preqnt.

The object of my invention is to provide. a molding device. of the type or chos above. referred lo in which the elemento which ronstitute, the same muy he readily assembled together with the part or ports whieh are to meoive'the molten metal and with whifh the portion formed from the. molten metal is to remain pernmnently alsmeialed, and the. several parts referred to lwhl'in proper position during the pouring of the molten metal into the mold und until it sets; tho molding derive as n whole, living simple in eonslruetion, and no forou-.d and ndaptd to Ihe illixhed nrtiele produced that. the assi-.m4 Illing referred lo muy he readily and ouekly aerolnplished.

A further olnjeet of my invention is to provide n molding device. of the kind almve Inferred to wherein n relatively large quantity of molten metal is present within an element. of the device., und directly above the article or element produced, white tlio-l molten metal is setting and cooling, to thorn-.hy permit a free esca e of oeelmled gases from the metal as il. imi-dens and to more eifel-.tively prevent the formation of hlow holes or voids lne to other rulli-acs within the holly of the finished product.

Other ohjeel of invention will appear from the following description theiteof and from the eoncludirn r claims.

My invention is illustrated in its preferred form in. the drawing accompanying and forming a part of thisspecification; although it will be. appreciated that the de- 5'46 tails thereof may he varied without departing from my invention, and that the same vioilsly -eylindrieal inform in ease includes all such' variations and rnodiicatioru of the particular embodiment thereof illustrated as come within thejscpe of the concluding claims whereinthe '-feeturesf-n which the'rfinvention consists are particulax-ly pointed out.

Referringtothe drawing, Figure 1. is a. view showing m invention artly in section upon a vertice plane :un .partly-broken away to ,better show thereof; l.

Fig. 2 is. aview. showing lthe 1 mendv'el .and guides ofm'y 4invention .iepalqte' und ppart from the m'old blocks-fwljnchfof appart thereof;

Fig. 3 is a. vew-.showngnthiefnder-siile Fig'. 4.is.n viewzpnrtlyfmillmiiltdi lly in setion,'ishowing -a' 'ronnwtngehnd' its cap or beuringoeurcd"in'glilcexpreparatory to forming ebearingtlerfprftgetlx'er wit h el amping meanswheltbythf Sports I of the rod are`held 'in'qfpl''pl lp'oaitism relative tothe moldnnafwholegnil,

Fig. `I-iss a view-iinilnr'g.toniljg.i1,5 rlrut showing :the Vparte before tho`imu1tem-'1netal hah-,heen pounedintothombld.-

In 'the fdrawng, the n'iifetenevnumml' 5 designates mandrel the -formo oosssection of which-maybe. varied iii-accordance with the. partcnlarfiha '.offtthe-fantii-le 4or element to-be`V reducen but fwhich is obhearings' uw to he formed at the cr'ankipinnd of-.n mnneeting lrod, or in v.|1ny.{l`git',1\c-.r idc-vice wherein` relative rotary;fmostelnienhhetwee two parts is iprenant .nndffhetiveen ,'wlich 'parte-a n bearing otnonif'lictionf/mthl is to dinally of the mandnel,2-.;nrlaq secured In place by' transvere'ely` lfttetln'gf, ins f8, although "thedetails .-whexzhhyfthggu des are provided or. .whereby itheyhros'lired :to the mandrel are obviously-m .'.rs-offdetil, and may he va-ried. 1These'j deqfamfwll be appreciatedA :fmm'-"Figs. Af unirti, Stn-.ve .to space thebearngtseat 9 -atsthe .end of. s. con- 'as located withmrgmovesextenllng longitn- -100 an engine or otliennieehanism, and an intervening annular space 11 into which the molten metal is poured, to then-eb)l provide a bearing for the crank pin with which the The reference numeral 2O designates e secondmold block Surrounding the conical upper end 6 of the mandrel, and the under surface of which block rests upon the seats 6 connecting rod is connected. i 9 'and cap 10 of the connecting rod when the 1u The mandrel is. provided with two' proparts are assembled preparatory to the for- .;je'eting collars; 12, 13 located adjacent its mation of a bearing within the annular lower end nnd'spnced ami-t from one anspace 11 between the said scat and cap. Y other to thereby provi c an intervening This upper block is heldl in `proper position 1o groove 14, `and the upper of which collars relative to the mandrel by mea-n5- of the 15 forms a ledge for supporting the lower ot' gides 7, the block havin two bppositely the tivo mold blocks tobe next described; located 'rooves 2l, 21 w ich toventhe the `groove' between the collars being prosaid gui es and space the block apart from ,vided to facilitate tlie=supporting1 of the the mandrel. The lower end of the o ening i5 inandrel'and mold as a'whole in an upright of the block through which the man rel ex- 30 osit'ion while inoltenlmetnl is being-poured tends is of renter diameter or cross seo in to the mold, and until the same sets and tional arca t ian the mandrel et the plane of owls.,l The mandrel may ofcourse he supthe said lower end, whereby an annular A p orted inen upri ht'position in any manpassageis provided between the block and ner; but 'inth em 'dment of my invention the mandrel through which the molten metal 35 illustrated theusanie is shown ils supported may How downward and into the space 11 by inserting the imiter"end-thereof between between the mandrel and the 'bearingiseat two spacedjawg'bndof which is shown at 9 and `capV 10 of the connecting. rod. The |15, ofa. Asuitable; S'iiliiportx or bracket 16; Vthe under side of the block'20 'is provided with Y, sides 4of the'petion of'the mandrel within an annulargmoye 'or in order to 9o the ve 14 betweiithe collars being lntpiovide' a portion of bearing'metnl'extendten as shown 'at L17, toithereby prevent the ing outward and along the laides' ofthe bearrnandrel frotnl'rotntig about a vertical exi. ing scat 9 and -cap 10, thesanie-'as'in the The entire, matter of upport "for the nnm- Y case with therme-i5 1 9 0f the block 18 above 330 drelfhoweijeipai'd as above' stated, is a matrcferredt. 1 95 teroseconldary im ortaneeso far as the The guides 7 are, provided'each with d invention'pf ilr'liiehlt 'is present `application hole 2? corresponding' inpoeitionf with ,the .relates.-.ipeonberneglgand iinyeheme for liolel in the' bearingsrat 9 and ca- 10 of suppprtingftlieslemeinftlie'upright position the connecting rod' i. rough which te te asindie'tedfmyb empyed, v which Secure the -van mpla' extend, and, io A The,` reference' numeral 18 designates a iiftl' the lrlrlectlnp; rd'and itseap have 1 lowenfmolflblock harin'g'an openingr eorrebeen put m place re$tling 'u ith'e lower s onding in foi-gn with the" crossv section of 4block 18, and the block 20' pu in place restt e mandreh V,tolth'iit it .will fitT the sinne ing upon' the rod and cap, asshownlin Fig. 40 closely, aeshownin' ',Figg. )fund which -5,thclcap and rod are e amp'ed togetherby 105 Amold block, is supported hy the ledge l2 and I llcans of clamping mechanism best shown 'is providndwith oppositely lo'uled grooves in Fig. 4, to thereb hold the' parts of the so positioned as tolfit over and receive the rod together while t e molten metal is being guides 7, 'a' of thel mandi-eig' the blrr-k in pom-ed into the moldvtonfrn tliebearng 4'5 question-not beingsecuredto the mandi-el in nml while the same Setsand' cools: This 1u i i any-permanentivny, but the opening therein clurni'nng devlco is shown as comprising a :i bengfusuch Siy1;}iat,'t can be easily elampinghur 24` having two hooks 25 pivrl, laced. uponl the. :mandrel in Vthe position otally connected at ittfto the free ends of -fi'z Ashown-1n the dran'ngand,readily removed the 51ml clmplfh! br: 39d, Whlch. hks im). frm" the?, lfmnd'ygl in disasmnbling u, engng. the,beamingl sont D in the manner 11 4parts and-:removing-.therod with the benrlllllstl'ted l.n I- if. 4 when the partslof the 'Ming formed. thereinfrom the :fielding device F01] um Clililcd together the hlmpmg -a's 'a whole, after the completion of'the foraction being accomplished .bymeans of a r= mationnfmh@ lygm-ing A screw [iin threaded engagement with the 55. Thisf mdd ,m-Ck is shown is mvidcd hn'r 24; and the inner en 'of which engages i2l wvith-arecesedS in-.its upper eli'r ace; the th@ fr 10, RS SIUWLl '2- l 1 "purposefftliis-recess being to permit a flow ln assembl'lngthe parts'ofthe rod the of r'noltexi metal outward andalongir the sides hearing `9 and cap-10 are .spaced a art from ofthe bearings .9, ,10 ofthe connectingi''d, one another by Lthe guides 7 which lii-l between them when the parts and rod are l2 to'the-e'by prnvde a. liearing having side 'wearing-frices.V recess or groove will,

- however, obviouslibe omitted in ease the bearing or other article produced in to terminate in the plane of the upper surface 0f the mold block in question.

assembled, es shown in Fig.- '4f and the cap and rod are positioned properly .relative to one another so as to secure a uniform thickne of metal all about the bearing produced, by means of positioningpins 28 carried by J'- illiistrated the clamping bar through the holes in 24and adapted to extend 'the scat 9 and cap 10 provided for the fastening bolts, and through the holes 23 in the guides, 7, thereby hold the seat and cap in proper po5ition relative to the mandrel and, eefsnrea uniform width of the o ening l'vahont the samel and into which t e 'molten metales poured.' rl`wo such pins are show n as iiloyed in the embodiment of my invention although it will lmappreciated that, so l'ar` as concerns the positioning of the paris to secure uniform width of the space l1, such end might he attained by the use nl' one pin only. L

In `view of the premises, it will 'be appreeated that after the parte have been assembled in the position shown, a space corre- .20, which metal with the hearing to he provided in the scat 9 and cap i0 ofthe connecting rod will be resent between said elements and theinan rel 5, as clearly shown in Fig., 5 ofV the drawing. Molten metal is then sponding vpoured into the opening surrounding the mandrel at the upper end of the mold block rims down and into the space il which the finished hearing is to occupy. It therefore, follows that there is la considerable mass or head of niolten metal above the lower surface of the lilock()` which lien at the upper end of the hearing uwli'e `the entire metal thas poured into the mold is still in a lnid condition, the pres sure of `which metal vserres to compact the bearing and to supply molten metal in abundance d nring the .Lettingr and cooling of the metal within the space 11 in which the hearing is formed. v

i 'lhe lower portion oi the space surrounding theimalidri-.l within the mold block 20 lain diri-ct romnmnh-ation `with the upper ends of the hearin, r members within the space il, from which it follows that a free ymasagre is provided through which gases mzelndeil in the. molten metal may escape from the hearing and into the riser provided by the. molten metal within the mold block 2li; thereby more effectively providing for` the escape of such gases and insuringr the noduction of a. hearing free, from blow# roles due. to such rases, to a shrinkage of the metal within t e space 11, or to other causes. l

In'aaing.'l my invention the. parts thereof, as well as the connecting rod enit pap 10, should he at a temperature approaching! that o`i`."tl ie molten metal at or before the, molten metal is actually poured into the, mold, in order to prevent a boo rapid cooling of the metal and the setting of the same before the mold cavity shall have been completely filled. This heating may obviously he donne in any way, and the temperature to which the arts are heatednwill obviously vary with t ie character of the molten metal to be poured, and will vary also'with the form and dimensions of the bearing or other device or element to be produced; the heating of the parts heini;r the more essential in case the thickness of hearing irovided within the hearing seat 9 and cap `l is slight.

Finally, it will he appreciated thatrthe surplus metal forming the riser within the upper mold block 2() will be severed from the bearing sections within the seat and cap at the end of the connecting rod, after the metal has solidilied and cooled and the rod and mold disassembled, and the bearing portions remaininihr within the scat of the rod and the cap roamed, or Otherwise operated upon, to provide a finished bearing.

llaving thas described and explaihed my invention, l claim and desire ;to secure by Letters. Patent 1. In combination in ainolding device of the class described, a cylindrical mandrel; twqfommsitely located guides extending Iongilmlinally of said mandiel; ahlmek-having an opening coresimnding in diameter with Htndinnlly of said mandrel; a hlock'having an opening cori-espfnldingin diameter with said mandrel. and two ol'ipositely hicated grooves adapted Vto receive said guides; and a sei-.ond hlock having an opening of groan-,i diameter than said mandrch'and two oppoaitely located grooves adapted to receive said grllidcs.

3. n combination in a molding device of the class described, u. cylindrical mandrel havin;r a conical upper end, and a ledge adjacent its lower end; t-wo op itely located guides extending longitudinel ly of said |nundre] and the lower .ends of ywhich extend helow the n pqer 'surface of the ledge aforesaid: a blocI avinan opening correspond, ing in diameter wit sai mandrel, and two oppositely' located grooves adapted to rece1 ve said guides; and a second block having an o lening of greater diameter than said mani rel and two oppontely located grooves adapted to receive issaid guides.

' 4. In combination in a molding 'device of the class Idescribed, a cylindrical mandrel having a ledge adjacent its lower end; wo oppositely` located guides extending longitudinally of said mandrel and one of which is provided with a hole; a block having an opening corresponding in diameter with said mandrel` imdfnvo oppositely located groeven adapted to receive auch guides; a second hilft-k luiving an opening of greater diameter than said mandrel, and two oppositely lofopposxtely located guides extending loni-` ving a positioning through the hohl cated grooves adap ted and a clamping device pin adapted to extent aforesaid in said guide.

5. In combination in a. molding device nt the class described, a cylindrical mandrel having a ledge adjacent its lower end; two opiosltely located guides extending longitn inally of said mandrel andl one of which is provided with :l hole; n block having nn opening:r corresponding in diameter with said mandreland two oppostely located grooves adapted to receive such guides; a second block having an opening: of greater diameter than said mandrel, and two oppo- .sitrly located grooves adapted to receive said guides; :i clamping bnr; :t positioning pin carried by said liar and adapted to extend through the hole aforesaidjn said guide; two hooks located one at cach of the free. ends of said clamping;r bar; and a tightening screw in threaded engagement with said clamping bar and located at the central por-i t ion thereof.

6. In combination in a molding device of the class described, a cylindrical mandrel having a ledge adjacent its lower end two,

tudinally of said mandrel and which gui are provided cach witha hole; a block having;r enl openingcorrcsponding in diameter with said mnndreL and two oppositely l0- cated grooves adapted to receiye such guides; a second block having an, opening of -greater diameter than said mandrch an two. oppositely located grooves adapted to 'rccive'said guides; a clamping bar; two positioning pins carried by saidfbar and which pins are adapted to extend through the holes' aforesaid in said guides; two hooks "pivotally connected one with each en d of said clamping bar; and :i tightening screw m- 'threaded engagement with said clamping har and located at the centra-l portion thcrf. Y

7. In combination in a molding device of the class described, a cylindrical mandrel having two projecting collars adjacent its lower end and spaced apart from one another to thereby rovide an intervening groove; two opposltely located guides cxtending longitirdinally of Vsaid mandrel; a block having un openin corresponding in diameter with said mam rel, and two oppositely located grooves adapted to receive said guides; and a second block having an opening of greater diameter than said inandrol, and two -oppositcly located grooves adapted to receive said guides.

in combination in a molding device of the class described, a cylindrical mandrel having a conical upper end, and two projet-ting collars adjacent its lower e'nd, and

which collars are spaced apart from one another to then.; provide an intervening groove; two oppositely located guidesexlending.,r longitudinally of said mandrelrand each of which is provided with a-hole; a block having an o ening corresponding in diameter with sai( m drehand two oppositely located grooves ndapted to receive siiid guides; a second block-havin an o nd said guidesf'and vu. secgnd'hlock having two nppos'itely ocatedgrooves adapted to ref ceive said guides."

10. In combination ini nimolding-g device C of the class described, a mandrel having a ledge at its lower end; a-block having un opening corresponding in form with the cross section of said mandrel; a second block spaced apa'rt from said mandrel; and means rari-ivd hy said mandrel and'engaging said econd block for thereby maintaini said second block in a definite position nrative to said mandrel. 'il' In testimony -whereof I-aflix my signa ture.

y EMMETT i.. ritos. y 

